Question: What is the dredger with the highest payload mass?
Paraphrase: What's the highest payload mass dredger?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q5810820 . ?ent wdt:P4519 ?obj . ?ent wdt:P31 wd:Q5810820 } ORDER BY DESC(?obj)LIMIT 5 
Answer: Mont Blanc, Shoreway